Wetland restoration method, device, equipment and storage medium
Patent Information
- Application Number
- CN202610952355.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-29
- Publication Date
- 2026-09-15
Smart Images
Figure CN122748826A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wetland ecological restoration technology, and in particular to a wetland restoration method, apparatus, equipment and storage medium. Background Technology
[0002] Currently, the restoration of high-altitude and cold-climate wetlands mainly focuses on physical fencing to prohibit grazing, water replenishment, and reseeding with monoculture vegetation. In terms of water purification, subsurface flow constructed wetlands are commonly used, employing gravel or sand as filler. Regarding carbon sequestration management, the impact of the water purification process on the decomposition of soil organic carbon has not been fully considered.
[0003] The aforementioned existing technologies have the following shortcomings in practical applications: First, purification and carbon sequestration are prone to imbalance. Traditional wetland purification often pursues a high dissolved oxygen environment to promote pollutant degradation, but this will accelerate the oxidation of organic carbon, causing wetlands to transform from carbon sinks into carbon sources. Second, the activity is low in high-altitude and cold environments. Traditional fillers have poor microbial adhesion at low temperatures in high-altitude areas, and the purification efficiency drops sharply as the temperature decreases. In addition, the vegetation community structure is simple, and the carbon pool is not stable enough. Finally, the regulation response is lagging. A fixed water level management mode is usually adopted, which cannot make adaptive adjustments according to changes in wetland environmental indicators.
[0004] It is evident that existing wetland restoration methods, in their pursuit of water purification, often exacerbate carbon loss, making it difficult to achieve a balance between the two. Furthermore, fixed management models cannot adapt to changes in wetland ecological indicators, limiting overall restoration effectiveness. Overcoming the contradiction between water purification and carbon sequestration, and improving the lagging regulation of existing wetland restoration systems, has become an urgent problem to be solved in this field. Summary of the Invention
[0005] This invention provides a wetland restoration method, apparatus, equipment, and storage medium to address the technical problems of existing wetland restoration methods, such as difficulty in balancing water purification and carbon sequestration, low system activity and insufficient carbon pool stability in high-altitude and cold environments, and delayed control response caused by fixed water level management modes.
[0006] This invention provides a wetland restoration method, wherein a biochar-based composite infiltration remediation module is installed below the influent zone and core purification zone of the wetland to be restored, and the surface of the wetland to be restored is configured with a vertically stratified carbon sink vegetation community; the method includes: Obtain dissolved oxygen concentration and carbon flux data for the wetland to be restored; Based on the dissolved oxygen concentration, the carbon flux data, and the current water level, calculate and predict the control water level; The predicted water level is used to drive the pump set to adjust the water level of the wetland to be restored.
[0007] According to a wetland remediation method provided by the present invention, the biochar-based composite infiltration remediation module comprises a biochar-based composite material made by mixing biochar and modified minerals; The pollutant removal efficiency of the biochar-based composite material is related to the pollutant concentration difference between the influent and effluent of the biochar-based composite infiltration remediation module, the effective porosity of the biochar-based composite material, and its low-temperature compensation factor. The biochar and the modified mineral have a preset mixing ratio, which is configured to maintain a preset carbon retention and purification efficiency when the ambient temperature of the wetland to be remediated is lower than a preset temperature threshold.
[0008] According to a wetland restoration method provided by the present invention, the vertically stratified carbon sink vegetation community includes deep-root carbon-fixing vegetation, medium-root water-purifying vegetation, and surface rapid turnover vegetation. The planting area ratios of the deep-root carbon-fixing vegetation, the medium-root water-purifying vegetation, and the surface rapid-turnover vegetation are configured to maximize the total carbon sequestration potential of the vertically stratified carbon sequestration vegetation community.
[0009] According to a wetland restoration method provided by the present invention, the step of calculating and predicting the controlled water level based on the dissolved oxygen concentration, the carbon flux data, and the current water level includes: The product of the ratio of the carbon flux data to the dissolved oxygen concentration and the sensitivity adjustment coefficient is used to obtain the water level adjustment compensation amount. The predicted control water level is obtained by summing the current water level and the water level adjustment compensation amount.
[0010] According to a wetland restoration method provided by the present invention, the step of adjusting the water level of the wetland to be restored by driving a pump set according to the predicted and controlled water level includes: If the carbon flux data exceeds a preset carbon emission threshold, the pump unit is driven to raise the water level of the wetland to be restored to create an anaerobic environment; and / or If the dissolved oxygen concentration is lower than the preset dissolved oxygen threshold, the pump set is driven to lower the water level of the wetland to be restored in order to increase the water body's reoxygenation capacity.
[0011] According to a wetland restoration method provided by the present invention, before obtaining the dissolved oxygen concentration and carbon flux data of the wetland to be restored, the method further includes: The initial carbon density and water pollution index of each spatial grid of the wetland to be restored are obtained, wherein each spatial grid is obtained by dividing the wetland to be restored according to a preset spatial scale; An initial state matrix is generated based on the initial carbon density and water pollution index of each spatial grid. The preset carbon emission threshold and the preset dissolved oxygen threshold are determined based on the initial state matrix.
[0012] A wetland restoration method according to the present invention further includes: Obtain comparative data on the increase in carbon sequestration and the water quality improvement rate in the remediation area and the control area of the wetland to be restored; The sensitivity adjustment coefficient is corrected based on the comparison data. The initial value of the sensitivity adjustment coefficient is preset based on a preset empirical value or the initial environmental parameters of the wetland to be restored.
[0013] According to a wetland restoration method provided by the present invention, the pump set includes a photovoltaic-driven pump set or a hydraulic-driven pump set; The carbon flux data are measured data obtained through carbon flux meter monitoring, or carbon emission trend data estimated based on the regression model of water level and water temperature of the wetland to be restored.
[0014] This invention also provides a wetland restoration device, wherein a biochar-based composite infiltration restoration module is disposed below the inlet area and core purification area of the wetland to be restored, and the surface of the wetland to be restored is configured with a vertically layered carbon sink vegetation community; the device includes: The acquisition module is used to acquire dissolved oxygen concentration and carbon flux data of the wetland water body to be restored; The prediction module is used to calculate and predict the control water level based on the dissolved oxygen concentration, the carbon flux data, and the current water level. The repair module is used to adjust the water level of the wetland to be repaired by driving the pump group according to the predicted water level.
[0015] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the wetland restoration method as described above.
[0016] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the wetland restoration method as described above.
[0017] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the wetland restoration method as described above.
[0018] This invention provides a wetland restoration method in which a biochar-based composite infiltration remediation module is installed below the influent zone and core purification zone of the wetland to be restored, and a vertically stratified carbon sink vegetation community is configured on the surface of the wetland. First, dissolved oxygen concentration and carbon flux data of the wetland water are acquired. Based on the dissolved oxygen concentration, carbon flux data, and current water level, a predicted and controlled water level is calculated. Then, a pump unit is driven to adjust the water level of the wetland according to the predicted and controlled water level. This invention sets up a biochar-based composite infiltration remediation module and a vertically stratified carbon sink vegetation community in the wetland, and dynamically calculates and adjusts the wetland water level based on real-time acquired dissolved oxygen concentration and carbon flux data. This can improve system activity and carbon pool stability in high-altitude and cold environments, while breaking the fixed water level management mode. Through synergistic regulation, a dynamic balance between water purification and carbon sequestration is achieved, effectively overcoming the defect of delayed regulation response. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the physical environment and structural layout of the wetland restoration method provided by the present invention.
[0021] Figure 2 This is a schematic diagram illustrating the microstructure and purification mechanism of the biochar-based composite material provided by the present invention.
[0022] Figure 3 This is a flowchart illustrating the wetland restoration method provided by the present invention.
[0023] Figure 4 This is one of the structural schematic diagrams of the wetland restoration device provided by the present invention.
[0024] Figure 5 This is the second schematic diagram of the wetland restoration device provided by the present invention.
[0025] Figure 6 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0027] Currently, the restoration of high-altitude and cold wetlands mainly relies on physical fencing to prohibit grazing, water replenishment, and reseeding of monoculture plants. Water purification often employs subsurface flow constructed wetlands with gravel or sand as fillers, and carbon sequestration management typically only increases photosynthetic products by expanding vegetation area. However, existing technologies often pursue high dissolved oxygen environments to promote pollutant degradation without fully considering their accelerating effect on soil organic carbon decomposition, leading to an imbalance between purification and carbon sequestration. Furthermore, traditional fillers exhibit poor microbial adhesion at low temperatures, resulting in insufficient carbon pool stability in monoculture communities. In addition, existing fixed water level management models cannot adaptively adjust to changes in environmental indicators, leading to delayed regulatory responses.
[0028] To address the aforementioned technical problems in existing technologies, this invention provides a wetland restoration method, apparatus, equipment, and storage medium. The inventive concept of this invention lies in: setting up a biochar-based composite infiltration restoration module below the influent zone and core purification zone of the wetland to be restored, and configuring a vertically layered carbon sink vegetation community on its surface to construct a synergistic physical and ecological foundation for restoration, thereby improving system activity and carbon pool stability in high-altitude and cold environments. Simultaneously, it breaks away from fixed water level management patterns, acquiring real-time dissolved oxygen concentration (representing water purification needs) and carbon flux (representing carbon loss), and calculating and predicting water level adjustments based on dissolved oxygen concentration, carbon flux data, and the current water level. This drives pump units to regulate the water level of the wetland to be restored, thereby achieving synergistic consideration and dynamic adaptive adjustment between water purification and carbon sequestration, effectively overcoming the defect of delayed control response.
[0029] The wetland restoration method, apparatus, equipment, and storage medium provided by the present invention are described below with reference to various embodiments and accompanying drawings.
[0030] Figure 1 This is a schematic diagram of the physical environment and structural layout of the wetland restoration method provided by the present invention, as shown below. Figure 1 As shown, the surface of the wetland to be restored is equipped with a vertically stratified carbon sink vegetation community, which includes tall grasses, medium-sized shrubs, and low meadow plants. The roots of each plant extend downwards into the soil layer to form a rhizosphere microbiome. Below the influent zone and core purification zone of the wetland to be restored, biochar-based composite material (BCM) infiltration remediation modules are installed, with microfluidic distribution pipes pre-embedded and connected inside the modules.
[0031] Optionally, the water area of the wetland to be restored is equipped with an inlet and a smart sensor. The smart sensor extends into the water to acquire dissolved oxygen concentration and carbon flux data in real time. A photovoltaic panel and a smart control unit are installed above the surface of the wetland. A water level regulating pump is connected below the smart control unit. The water level regulating pump is connected to a microfluidic distribution pipe through a pipeline to form a fluid circulation path. The photovoltaic panel serves as a power supply unit and is electrically connected to the water level regulating pump. Together with their matching control circuit, they constitute a photovoltaic-driven pump unit. The smart control unit is signal-connected to the smart sensor and the water level regulating pump. It can be configured to receive dissolved oxygen concentration and carbon flux data, calculate and predict the water level based on the current water level parameters, and output a drive signal to the water level regulating pump to execute the water level regulation action.
[0032] Furthermore, the underground aquifer is located at the bottom of the biochar-based composite infiltration remediation module.
[0033] It should be noted that, Figure 1 The physical environment and structural layout of the wetland restoration method shown are merely illustrative of the physical architecture, used to help explain the operating environment and component interactions of the wetland restoration method, and are not absolute limitations on the types, quantities, spatial locations, or connection methods of specific components. In actual engineering implementation, the selection, arrangement, and drive form of components can be equivalently replaced or adaptively adjusted according to the topographic features, hydrological conditions, and energy supply status of the plateau wetland, as long as they can support the dynamic water level control logic and restoration process described in this invention, they do not depart from the technical scope of this invention.
[0034] In some embodiments, a biochar-based composite infiltration remediation module is installed below the influent zone and core purification zone of the wetland to be remediated. The module is filled with a biochar-based composite material made from a mixture of biochar and modified minerals. The biochar and modified minerals have a preset mixing ratio. By adjusting this preset mixing ratio, the effective porosity and low-temperature compensation factor of the biochar-based composite material can be controlled, ensuring that the preset carbon retention and purification efficiency is maintained even when the ambient temperature of the wetland to be remediated is below a preset temperature threshold.
[0035] In some embodiments, the pollutant removal efficiency η of the biochar-based composite material satisfies the following relationship (1): η=[(C in -C out ) / C in ]×ln(φ+ (1) Among them, C in and C out These represent the influent and effluent pollutant concentrations of the biochar-based composite infiltration remediation module, respectively, and φ represents the effective porosity of the biochar-based composite material. This refers to the low-temperature compensation factor in extremely cold environments below a preset temperature threshold. Effective porosity φ and low-temperature compensation factor. By using a preset mixing ratio for coupling and control, it can be adapted to the needs of microbial attachment and carbon sequestration in high-altitude and low-temperature environments.
[0036] Figure 2 This is a schematic diagram illustrating the microstructure and purification mechanism of the biochar-based composite material provided by the present invention, as shown below. Figure 2 As shown, the surface of the biochar-based composite material forms an adsorption layer with abundant active sites, which is used to intercept target pollutants such as NO3 in water through ion exchange and surface complexation. - PO4 3- Plasma. The biochar-based composite material exhibits a three-dimensional, interconnected porous network structure, forming a microbial / carbon reservoir layer. This provides an attachment carrier and microenvironment for low-temperature functional microorganisms. The geometric characteristics of this porous network are characterized by the effective porosity φ. The dense interface on the outside of the biochar-based composite material forms a carbon sequestration boundary, achieving organic carbon retention through physical barriers and redox buffering. Low-temperature compensation factor. These parameters can characterize the ability of this microstructure to maintain microbial metabolic activity and carbon sequestration stability under high-altitude and low-temperature conditions.
[0037] In some embodiments, such as in areas where biochar resources are limited or transportation costs are high, the biochar component in the biochar-based composite material can be replaced with modified zeolite or locally sourced peat that has been activated at low temperatures. It also possesses a high specific surface area and hierarchical pore structure, enabling the adsorption and removal of target pollutants through surface complexation, ion exchange, and physical retention. Furthermore, when combined with modified minerals, it maintains the preset carbon retention and purification efficiency.
[0038] Furthermore, the surface of the wetland to be restored is configured with a vertically stratified carbon sequestration vegetation community, which may include, for example, deep-rooted carbon-fixing vegetation, medium-rooted water-purifying vegetation, and surface-level rapid-returning vegetation. The total system carbon sequestration potential S of the vertically stratified carbon sequestration vegetation community is [missing information]. total The following relation (2) is satisfied: S total =∑(R c,i ·K f,i ·A i (2) Among them, A i R represents the percentage of the planting area of the i-th plant species. c,i Let K be the carbon fixation rate of the i-th plant. f,i Let be the cold resistance coefficient of the i-th plant.
[0039] In some embodiments, the planting area ratio of deep-rooted carbon-fixing vegetation, meso-rooted water-purifying vegetation, and surface rapid-returning vegetation can be configured by optimizing the relationship (2) to make the total carbon sequestration potential S of the system... total Maximize. In practical configurations, for example, sedges and grasses with well-developed root systems can be mixed and planted to utilize their high biomass accumulation in the aboveground parts and high turnover in the underground parts to construct a carbon sink structure substrate that matches the biochar-based composite infiltration remediation module.
[0040] By regulating the pore structure and designing for low-temperature compensation in the aforementioned biochar-based composite materials, the adhesion conditions and metabolic activity of microorganisms in cold environments can be effectively improved, achieving physical retention and deep sequestration of organic carbon while ensuring water purification efficiency. Simultaneously, the quantitative configuration of vertically stratified carbon sink vegetation communities based on carbon fixation rate and cold resistance coefficient can optimize root spatial distribution and biomass turnover patterns, significantly enhancing the structural stability and total carbon sequestration potential of wetland carbon pools. Based on the synergistic configuration of the material properties and community structure of the biochar-based composite infiltration remediation module, a physical and ecological foundation for balancing water purification and carbon sequestration can be jointly constructed, providing a stable operating environment for subsequent dynamic water level control based on dissolved oxygen and carbon flux feedback.
[0041] Based on the above, Figure 1 The physical architecture and component connections are shown below. The specific implementation process of the wetland restoration method provided by this invention will be further elaborated below. This method uses a biochar-based composite infiltration restoration module and a vertically layered carbon sink vegetation community as the synergistic restoration substrate. Dissolved oxygen concentration and carbon flux data of the wetland water body to be restored are acquired in real time through intelligent sensing devices. The intelligent control unit calculates and predicts the water level based on carbon-water synergistic feedback logic and the current water level, and sends drive commands to the pump set to execute the water level adjustment operation.
[0042] Figure 3 This is a flowchart illustrating the wetland restoration method provided by the present invention, as shown below. Figure 3 As shown, the wetland restoration method provided by the present invention includes: S101. Obtain dissolved oxygen concentration and carbon flux data for the wetland to be restored.
[0043] Intelligent sensing devices are deployed at the water inlet, core purification area, and vegetation rhizosphere microenvironment to collect real-time data on dissolved oxygen concentration in the water and carbon flux at the interface between the wetland to be restored and the atmosphere.
[0044] Dissolved oxygen concentration is used to characterize the redox state of water bodies and the potential risk boundary of organic carbon mineralization and decomposition. Carbon flux data can be obtained through gas concentration gradient monitoring devices and is used to quantify the net exchange rate of carbon dioxide and methane to reflect the source / sink transformation trend of wetland soil carbon pools.
[0045] In some embodiments, carbon flux data can also be measured data obtained through monitoring with a dedicated carbon flux meter. In scenarios lacking high-precision monitoring equipment, carbon emission trend data can also be estimated based on a regression model of the water level and temperature of the wetland to be restored. The intelligent sensing device filters, calibrates, and digitizes the collected raw signals, and then transmits them to the intelligent control unit in real time via a communication link, forming the basic input dataset that drives the subsequent dynamic water level control algorithm.
[0046] S102. Based on dissolved oxygen concentration, carbon flux data and current water level, calculate and predict the control water level.
[0047] The intelligent control unit calculates dissolved oxygen concentration (which characterizes the redox state of water and the potential risk boundary of organic carbon mineralization and decomposition) and carbon flux (which reflects the source / sink conversion trend of wetland soil carbon pool) with the monitored current water level. This establishes a dynamic mathematical correlation between water quality purification indicators and carbon metabolism indicators. By analyzing the relative intensity of carbon flux and dissolved oxygen concentration in real time, it assesses the balance between the risk of organic carbon oxidation and loss and the oxygen demand intensity for pollutant degradation under the current hydrological conditions. Then, combined with the eco-hydrological benchmark corresponding to the current water level, it uses a preset carbon-water synergistic feedback algorithm for iterative calculation, and finally outputs a predicted and regulated water level value that balances efficient water purification and low carbon loss, which serves as the target benchmark value for subsequent water level regulation.
[0048] In some embodiments, step S102 may be implemented in the following ways: The product of the ratio of carbon flux data to dissolved oxygen concentration and the sensitivity adjustment coefficient is used to obtain the water level adjustment compensation amount. The sum of the current water level and the water level adjustment compensation amount is then obtained to obtain the predicted control water level. This predicted control water level can be calculated using the preset carbon-water synergistic feedback algorithm shown in the following relationship (3): H next =H now +β·(F CO2 / DO real (3) Among them, H next To predict and regulate water levels, H now The current water level is given by β, where β is the sensitivity adjustment coefficient, and F is the current water level. CO2 For real-time monitoring of carbon flux data, DO real This represents the real-time dissolved oxygen concentration. The ratio of carbon flux data to dissolved oxygen concentration quantifies the relative weight of the driving force of carbon loss and the water's reoxygenation and purification capacity. When the carbon flux data F CO2 Relative to dissolved oxygen concentration (DO) real When the ratio increases, the calculated water level regulation compensation increases accordingly, resulting in a corresponding increase in the predicted regulation water level H. next The calculated result is higher than the current water level H.now This can suppress the flooding depth compensation required for the severe oxidation of organic carbon. Conversely, when this ratio decreases, the calculated compensation amount decreases accordingly, affecting the predicted control water level H. next Numerically, the water level has fallen back towards the benchmark level.
[0049] In addition, the sensitivity adjustment coefficient β is used to adjust the gain of the ratio between carbon flux data and dissolved oxygen concentration to adapt to the ecological response curves of different seasons or different wetland grids, so as to ensure that the predicted control water level output by calculation can accurately reflect the dynamic balance point of carbon and water metabolism.
[0050] In some embodiments, the initial value of the sensitivity adjustment coefficient β can be preset based on long-term hydrological observation experience or offline preset based on initial environmental parameters of the wetland to be restored, such as soil permeability, basic vegetation coverage, and historical water level fluctuation curves. During the operation cycle of the carbon-water synergistic feedback algorithm, comparative data on the increase in carbon sequestration and the water quality improvement rate between the restoration area and the control area without this method can be continuously acquired. The intelligent control unit standardizes the comparative data and then wirelessly transmits it to the cloud server via a low-power wide-area network. The cloud server uses a big data analysis model to perform long-term trend fitting and deviation tracing on the multi-source comparative data, generates an optimized correction value for the sensitivity adjustment coefficient β, and remotely sends the correction value to the intelligent control unit to complete the parameter update. This enables the carbon-water synergistic feedback algorithm to adapt to the response hysteresis characteristics and environmental heterogeneity of different plateau wetland ecological substrates, ensuring that the predicted and regulated water level output value maintains high confidence and dynamic adaptability during long-term operation, and completing the self-calibration closed loop of the algorithm parameters.
[0051] S103. Adjust the water level of the wetland to be restored by driving the pump group according to the predicted water level.
[0052] The calculated predicted water level is used as the target control benchmark, and a corresponding variable frequency drive signal is generated and sent to the pump unit. Upon receiving the command, the pump unit starts operation, delivering or pumping water through the connecting pipeline to the microfluidic distribution pipe within the soil remediation layer. The water flow is evenly diffused through the microfluidic distribution pipe to the biochar-based composite infiltration remediation module and the rhizosphere microenvironment of the vegetation, gradually bringing the actual hydrological interface of the wetland to be remediated closer to and stabilizing at the predicted water level. This achieves a precise mapping from algorithmic decision values to physical hydrological regulation, completing a closed-loop operation of carbon-water synergistic regulation.
[0053] In some embodiments, the pump set may include a photovoltaic-driven pump set or a hydraulic-driven pump set. For example, in open plateau areas with abundant sunshine, a photovoltaic-driven pump set can be used to achieve energy self-sufficiency. In areas with limited sunshine or natural elevation differences, a hydraulic-driven pump set driven by the natural elevation difference of the water flow can be used.
[0054] In some embodiments, the pump unit can be driven to regulate the water level by triggering a dual-threshold condition. For example, if the real-time carbon flux data exceeds a preset carbon emission threshold, indicating severe soil organic carbon mineralization and decomposition, and the carbon pool faces the risk of loss from sink to source, a water level rise command is generated to drive the pump unit to raise the water level of the wetland to be restored. The rise in water level can effectively submerge the soil aeration pores and rhizosphere, quickly creating an anaerobic or hypoxic microenvironment, blocking the severe oxidation of organic carbon from both physical isolation and biochemical inhibition levels.
[0055] And / or, if the dissolved oxygen concentration is lower than the preset dissolved oxygen threshold, it indicates that the water body's reoxygenation capacity is insufficient and the degradation of aerobic pollutants in the subsurface layer is limited. This generates a precipitation command to drive the pump set to lower the water level of the wetland to be restored. The drop in water level promotes gas exchange between surface water and the atmosphere, increases the dissolved oxygen content in the water body, and restores the metabolic activity of aerobic microorganisms to ensure water purification efficiency.
[0056] In some embodiments, the conditionally triggered dual thresholds—a preset carbon emission threshold and a preset dissolved oxygen threshold—can be pre-defined. For example, before dynamic water level regulation, a combination of hyperspectral remote sensing and ground sampling is used to divide the plateau wetland into grids, obtaining the initial carbon density and water pollution index of each spatial grid of the wetland to be restored. Each spatial grid is a grid unit obtained by homogenizing the topography and vegetation of the wetland to be restored according to a preset spatial scale. Then, based on the initial carbon density and water pollution index of each spatial grid, an initial state matrix is constructed to characterize the baseline ecological features of the wetland. By using the carbon pool background and water load characteristics of each grid reflected in this initial state matrix, the preset carbon emission threshold and the preset dissolved oxygen threshold are determined differentially, ensuring that water level regulation commands can accurately respond to the metabolic characteristics of different grid areas, effectively overcoming the lag in regulation response under traditional fixed management models.
[0057] As can be seen from the descriptions of the above embodiments, the wetland remediation method provided by this invention, by constructing a synergistic remediation substrate of biochar-based composite infiltration remediation module and vertically layered carbon sink vegetation community, and combining real-time feedback regulation of dissolved oxygen concentration and carbon flux data, can effectively overcome the shortcomings of traditional remediation processes that accelerate soil organic carbon oxidation due to the pursuit of a high dissolved oxygen environment. Furthermore, while ensuring efficient water purification, it can improve the carbon sequestration capacity per unit area, which has been experimentally shown to increase by 25%-35%, achieving a dynamic balance between water purification and carbon sequestration. In addition, based on the microporous structure protection and low-temperature compensation parameter regulation of the biochar-based composite material, functional microorganisms can maintain their basic metabolic activity even at high altitudes or during freezing periods, significantly enhancing activity and the stability of the deep carbon pool, effectively extending the annual operating cycle of the remediation function. Furthermore, unlike traditional fixed water level management models, this invention dynamically calculates and predicts water levels by collecting dissolved oxygen concentration and carbon flux data in real time and incorporating them into a carbon-water co-feedback algorithm. This enables adaptive water level decision-making based on the real-time carbon and oxygen metabolism status of wetlands, effectively overcoming the lag in regulation response under climate fluctuations and seasonal changes, and preventing vegetation degradation and carbon pool imbalance caused by wetland drying or excessive flooding. In addition, this invention employs a photovoltaic-driven pump unit and intelligent control unit to construct a self-powered microfluidic circulation architecture, which can drive water level regulation and data interaction without an external power grid. This makes it highly adaptable to large-scale engineering deployments in remote plateau areas, significantly reducing wetland restoration and maintenance costs and reliance on manual intervention.
[0058] The wetland restoration device provided by the present invention is described below. The wetland restoration device described below can be referred to in correspondence with the wetland restoration method described above.
[0059] Figure 4 This is one of the structural schematic diagrams of the wetland restoration device provided by the present invention. A biochar-based composite infiltration restoration module is installed below the inlet area and core purification area of the wetland to be restored, and the surface of the wetland to be restored is configured with a vertically layered carbon sink vegetation community. For example... Figure 4 As shown, the wetland restoration device 400 includes: The acquisition module 401 is used to acquire dissolved oxygen concentration and carbon flux data of the wetland water body to be restored; Prediction module 402 is used to calculate and predict the control water level based on dissolved oxygen concentration, carbon flux data and current water level; Repair module 403 is used to adjust the water level of the wetland to be repaired by driving the pump group according to the predicted water level.
[0060] In one possible design, the biochar-based composite infiltration remediation module comprises a biochar-based composite material made from a mixture of biochar and modified minerals. The pollutant removal efficiency of the biochar-based composite material is related to the pollutant concentration difference between the influent and effluent of the biochar-based composite infiltration remediation module, the effective porosity of the biochar-based composite material, and its low-temperature compensation factor. The biochar and the modified mineral have a preset mixing ratio, which is configured to maintain a preset carbon retention and purification efficiency when the ambient temperature of the wetland to be remediated is lower than a preset temperature threshold.
[0061] In one possible design, the vertically stratified carbon sink vegetation community includes deep-rooted carbon-fixing vegetation, medium-rooted water-purifying vegetation, and surface-level rapid turnover vegetation. The planting area ratios of deep-rooted carbon-fixing vegetation, medium-rooted water-purifying vegetation, and surface rapid-turnover vegetation were configured to maximize the total carbon sequestration potential of the vertically stratified carbon sequestration vegetation community.
[0062] In one possible design, the prediction module 402 is used for: The product of the ratio of carbon flux data to dissolved oxygen concentration and the sensitivity adjustment coefficient is used to obtain the water level regulation compensation amount. The sum of the current water level and the water level regulation compensation is obtained to get the predicted regulation water level.
[0063] In one possible design, the repair module 403 is used for: If carbon flux data exceeds a preset carbon emission threshold, the pump unit will be driven to raise the water level of the wetland to be restored to create an anaerobic environment; and / or If the dissolved oxygen concentration is lower than the preset dissolved oxygen threshold, the pump set will be driven to lower the water level of the wetland to be restored in order to increase the water body’s reoxygenation capacity.
[0064] In one possible design, before acquiring dissolved oxygen concentration and carbon flux data for the wetland to be restored, the prediction module 402 is also used for: The initial carbon density and water pollution index of each spatial grid of the wetland to be restored are obtained. Each spatial grid is obtained by dividing the wetland to be restored according to a preset spatial scale. An initial state matrix is generated based on the initial carbon density and water pollution index of each spatial grid. The preset carbon emission threshold and preset dissolved oxygen threshold are determined based on the initial state matrix.
[0065] exist Figure 4 On this basis, Figure 5 This is a second schematic diagram of the structure of the wetland restoration device provided by the present invention, as shown below. Figure 5 As shown, the wetland restoration device 400 further includes: a correction module 404, which is used for: To obtain comparative data on the increase in carbon sequestration and the rate of water quality improvement between the restoration area and the control area in the wetland to be restored; The sensitivity adjustment coefficient is corrected based on comparative data. The initial value of the sensitivity adjustment coefficient is preset based on the empirical value or the initial environmental parameters of the wetland to be restored.
[0066] In one possible design, the pump set includes either a photovoltaic-driven pump set or a hydraulically driven pump set; Carbon flux data are measured data obtained through carbon flux meter monitoring, or carbon emission trend data estimated based on regression models of water level and water temperature of wetlands to be restored.
[0067] Figure 6 This is a schematic diagram of the structure of the electronic device provided by the present invention, such as... Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640. The processor 610, communication interface 620, and memory 630 communicate with each other via the communication bus 640. The processor 610 can call logical instructions in the memory 630 to execute the wetland restoration method. A biochar-based composite infiltration remediation module is installed below the inlet area and core purification area of the wetland to be restored, and the surface of the wetland to be restored is configured with a vertically stratified carbon sink vegetation community. The method includes: acquiring dissolved oxygen concentration and carbon flux data of the wetland to be restored; calculating a predicted and controlled water level based on the dissolved oxygen concentration, carbon flux data, and the current water level; and driving a pump group to adjust the water level of the wetland to be restored according to the predicted and controlled water level.
[0068] Furthermore, the logical instructions in the aforementioned memory 630 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0069] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the wetland restoration methods provided by the above methods. A biochar-based composite infiltration restoration module is provided below the inlet area and core purification area of the wetland to be restored, and a vertically layered carbon sink vegetation community is configured on the surface of the wetland to be restored. The method includes: acquiring dissolved oxygen concentration and carbon flux data of the water body of the wetland to be restored; calculating and predicting the controlled water level based on the dissolved oxygen concentration, carbon flux data and the current water level; and driving a pump group to adjust the water level of the wetland to be restored according to the predicted controlled water level.
[0070] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the wetland restoration methods provided by the above methods. A biochar-based composite infiltration restoration module is disposed below the inlet area and core purification area of the wetland to be restored, and a vertically stratified carbon sink vegetation community is configured on the surface of the wetland to be restored. The method includes: acquiring dissolved oxygen concentration and carbon flux data of the water body of the wetland to be restored; calculating a predicted and controlled water level based on the dissolved oxygen concentration, carbon flux data, and the current water level; and driving a pump group to adjust the water level of the wetland to be restored according to the predicted and controlled water level.
[0071] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0072] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.
[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A wetland restoration method, characterized in that, A biochar-based composite infiltration remediation module is installed below the influent zone and core purification zone of the wetland to be remediated, and the surface of the wetland to be remediated is equipped with a vertically stratified carbon sink vegetation community; the method includes: Obtain dissolved oxygen concentration and carbon flux data for the wetland to be restored; Based on the dissolved oxygen concentration, the carbon flux data, and the current water level, calculate and predict the control water level; The predicted water level is used to drive the pump set to adjust the water level of the wetland to be restored.
2. The method according to claim 1, characterized in that, The biochar-based composite infiltration remediation module includes a biochar-based composite material made from a mixture of biochar and modified minerals; The pollutant removal efficiency of the biochar-based composite material is related to the pollutant concentration difference between the influent and effluent of the biochar-based composite infiltration remediation module, the effective porosity of the biochar-based composite material, and its low-temperature compensation factor. The biochar and the modified mineral have a preset mixing ratio, which is configured to maintain a preset carbon retention and purification efficiency when the ambient temperature of the wetland to be remediated is lower than a preset temperature threshold.
3. The method according to claim 1, characterized in that, The vertically stratified carbon sink vegetation community includes deep-rooted carbon-fixing vegetation, medium-rooted water-purifying vegetation, and surface rapid turnover vegetation. The planting area ratios of the deep-root carbon-fixing vegetation, the medium-root water-purifying vegetation, and the surface rapid-turnover vegetation are configured to maximize the total carbon sequestration potential of the vertically stratified carbon sequestration vegetation community.
4. The method according to any one of claims 1 to 3, characterized in that, The calculation and prediction of the control water level based on the dissolved oxygen concentration, the carbon flux data, and the current water level includes: The product of the ratio of the carbon flux data to the dissolved oxygen concentration and the sensitivity adjustment coefficient is used to obtain the water level adjustment compensation amount. The predicted control water level is obtained by summing the current water level and the water level adjustment compensation amount.
5. The method according to claim 4, characterized in that, The step of adjusting the water level of the wetland to be restored by driving the pump group according to the predicted water level includes: If the carbon flux data exceeds a preset carbon emission threshold, the pump unit is driven to raise the water level of the wetland to be restored to create an anaerobic environment; and / or If the dissolved oxygen concentration is lower than the preset dissolved oxygen threshold, the pump set is driven to lower the water level of the wetland to be restored in order to increase the water body's reoxygenation capacity.
6. The method according to claim 5, characterized in that, Before obtaining the dissolved oxygen concentration and carbon flux data of the wetland to be restored, the method further includes: The initial carbon density and water pollution index of each spatial grid of the wetland to be restored are obtained, wherein each spatial grid is obtained by dividing the wetland to be restored according to a preset spatial scale; An initial state matrix is generated based on the initial carbon density and water pollution index of each spatial grid. The preset carbon emission threshold and the preset dissolved oxygen threshold are determined based on the initial state matrix.
7. The method according to claim 4, characterized in that, Also includes: Obtain comparative data on the increase in carbon sequestration and the water quality improvement rate in the remediation area and the control area of the wetland to be restored; The sensitivity adjustment coefficient is corrected based on the comparison data. The initial value of the sensitivity adjustment coefficient is preset based on a preset empirical value or the initial environmental parameters of the wetland to be restored.
8. The method according to claim 1, characterized in that, The pump set includes a photovoltaic-driven pump set or a hydraulic-driven pump set; The carbon flux data are measured data obtained through carbon flux meter monitoring, or carbon emission trend data estimated based on the regression model of water level and water temperature of the wetland to be restored.
9. A wetland restoration device, characterized in that, A biochar-based composite infiltration remediation module is installed below the influent zone and core purification zone of the wetland to be remediated, and the surface of the wetland to be remediated is equipped with a vertically stratified carbon sink vegetation community; the device includes: The acquisition module is used to acquire dissolved oxygen concentration and carbon flux data of the wetland water body to be restored; The prediction module is used to calculate and predict the control water level based on the dissolved oxygen concentration, the carbon flux data, and the current water level. The repair module is used to adjust the water level of the wetland to be repaired by driving the pump group according to the predicted water level.
10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the wetland restoration method as described in any one of claims 1 to 8.
11. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the wetland restoration method as described in any one of claims 1 to 8.
12. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the wetland restoration method as described in any one of claims 1 to 8.